[UBUNTU 20.04] kubernetes-core is not fully installed on s390x

Bug #1889763 reported by bugproxy
6
This bug affects 1 person
Affects Status Importance Assigned to Milestone
Charmed Kubernetes Bundles
Invalid
Undecided
Unassigned
Ubuntu on IBM z Systems
Invalid
Undecided
CDK Leadership

Bug Description

Steps to reproduce:
LXD setup and juju installation are done following these instructions https://ubuntu.com/kubernetes/docs/install-local

Kubernetes Core bundle is installed as described here https://jaas.ai/kubernetes-core with
juju deploy cs:bundle/kubernetes-core-1069

Expected result - 1 master and 1 worker node.

Actual result - just 1 node.
# juju status
Model Controller Cloud/Region Version SLA Timestamp
k8s localhost-localhost localhost/localhost 2.8.1 unsupported 11:28:37+02:00

App Version Status Scale Charm Store Rev OS Notes
containerd 1.3.3 active 2 containerd jujucharms 80 ubuntu
easyrsa 3.0.1 active 1 easyrsa jujucharms 318 ubuntu
etcd 3.3.19 active 1 etcd jujucharms 521 ubuntu
flannel 0.11.0 active 2 flannel jujucharms 492 ubuntu
kubernetes-master 1.18.6 active 1 kubernetes-master jujucharms 850 ubuntu exposed
kubernetes-worker 1.18.6 active 1 kubernetes-worker jujucharms 682 ubuntu exposed

Unit Workload Agent Machine Public address Ports Message
easyrsa/0* active idle 0/lxd/0 10.123.107.225 Certificate Authority connected.
etcd/0* active idle 0 10.70.13.93 2379/tcp Healthy with 1 known peer
kubernetes-master/0* active idle 0 10.70.13.93 6443/tcp Kubernetes master running.
  containerd/1 active idle 10.70.13.93 Container runtime available
  flannel/1 active idle 10.70.13.93 Flannel subnet 10.1.67.1/24
kubernetes-worker/0* active idle 1 10.70.13.168 80/tcp,443/tcp Kubernetes worker running.
  containerd/0* active idle 10.70.13.168 Container runtime available
  flannel/0* active idle 10.70.13.168 Flannel subnet 10.1.99.1/24

Machine State DNS Inst id Series AZ Message
0 started 10.70.13.93 juju-62238e-0 bionic Running
0/lxd/0 started 10.123.107.225 juju-62238e-0-lxd-0 bionic Container started
1 started 10.70.13.168 juju-62238e-1 bionic Running

# kubectl get nodes
NAME STATUS ROLES AGE VERSION
juju-62238e-1 Ready <none> 74m v1.18.6

Output about pods on the cluster

# kubectl get pods
No resources found in default namespace.
root@m8360041:~# kubectl get pods -A
NAMESPACE NAME READY STATUS RESTARTS AGE
ingress-nginx-kubernetes-worker default-http-backend-kubernetes-worker-6fc4c9975-2dwsc 1/1 Running 0 41m
ingress-nginx-kubernetes-worker nginx-ingress-controller-kubernetes-worker-qmz2j 1/1 Running 0 41m
kube-system coredns-7f748b899d-dc5hx 1/1 Running 0 42m
kube-system kube-state-metrics-69f474f8cb-9s85h 0/1 CrashLoopBackOff 26 42m
kube-system metrics-server-v0.3.6-5c9f85bbd6-8mksp 2/2 Running 0 42m
kubernetes-dashboard dashboard-metrics-scraper-78d587b6b-2ggmz 0/1 CrashLoopBackOff 26 42m
kubernetes-dashboard kubernetes-dashboard-76b6648555-x4fng 1/1 Running 0 42m

bugproxy (bugproxy)
tags: added: architecture-s39064 bugnameltc-187023 severity-high targetmilestone-inin2004
Changed in ubuntu:
assignee: nobody → Skipper Bug Screeners (skipper-screen-team)
affects: ubuntu → linux (Ubuntu)
no longer affects: ubuntu-z-systems
affects: linux (Ubuntu) → ubuntu-z-systems
Changed in ubuntu-z-systems:
assignee: Skipper Bug Screeners (skipper-screen-team) → CDK Leadership (cdk8s-leader)
Revision history for this message
George Kraft (cynerva) wrote :

> Actual result - just 1 node.

This is normal, expected behavior for Charmed Kubernetes. The kubernetes-master units do -not- participate as Kubernetes nodes or appear in `kubectl get nodes` output. This is because the kubernetes-master units run only the Kubernetes control plane components: kube-apiserver, kube-controller-manager, kube-scheduler. They do not run Kubelet.

Changed in charmed-kubernetes-bundles:
status: New → Invalid
Frank Heimes (fheimes)
Changed in ubuntu-z-systems:
status: New → Invalid
Revision history for this message
bugproxy (bugproxy) wrote : Comment bridged from LTC Bugzilla

------- Comment From <email address hidden> 2021-01-27 04:43 EDT-------
IBM bugzilla status->closed, not a Bug

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